Which coin is more powerful in chess?
Excuse me, but I'm intrigued by the phrase 'which coin is more powerful in chess.' Could you please elaborate on this? Are we referring to a metaphorical use of the term 'coin' to signify a certain strategy, piece, or aspect of the game of chess? Or is there an actual physical coin being used in some unique variant of the game? I'm genuinely curious to understand the context and the rationale behind this question.